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Studies of the reactions between indole-2,3-diones (isatins) and 2-aminobenzylamine
Södertörns högskola, Avdelning Naturvetenskap. Karolinska Institute.
Karolinska Institute.
Chemical Centre, Lund.
KTH.
2003 (engelsk)Inngår i: Tetrahedron, ISSN 0040-4020, E-ISSN 1464-5416, Vol. 59, nr 7, s. 1033-1048Artikkel i tidsskrift (Fagfellevurdert) Published
sted, utgiver, år, opplag, sider
2003. Vol. 59, nr 7, s. 1033-1048
HSV kategori
Identifikatorer
URN: urn:nbn:se:sh:diva-15639DOI: 10.1016/S0040-4020(02)01647-2ISI: 000180906000012Scopus ID: 2-s2.0-0037429056OAI: oai:DiVA.org:sh-15639DiVA, id: diva2:505217
Tilgjengelig fra: 2012-02-23 Laget: 2012-02-22 Sist oppdatert: 2017-12-07bibliografisk kontrollert
Inngår i avhandling
1. Syntheses of some tri- and tetracyclic heterocycles containing an indole moiety
Åpne denne publikasjonen i ny fane eller vindu >>Syntheses of some tri- and tetracyclic heterocycles containing an indole moiety
2004 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

This thesis deals with the development of new synthetic methods leading to fused tri- and tetracyclic heterocycles, many of which have interesting biological activity such as antiviral and DNA intercalating properties. The reactions between isatins and 2-aminobenzylamine in acetic acid can give, depending on the conditions, either complex spirooxindoles or indolo[3,2-c]quinolin-6-ones. Proposed mechanisms are presented (involving a simpler form of spirooxindoles). These spirooxindoles can easily be obtained from isatins and 2-aminobenzylamine in methanol (Paper I). The previously unknown, but incorrectly claimed, linear isomer of indolo[3,2-c]quinolin-6one, i.e. indolo[2,3-b]quinolin-11-one, has been prepared for the first time by thermal (260 degrees C) cyclization of methyl 2 -phenylamino-indole-3 -carboxylate, which was in turn prepared in two steps from methyl indole-3 -carboxylate. The benzothiopyrano[2,3-b]indol-11-one and benzopyrano[2,3-b]indol-11-one could be prepared similarly (Papers I and II). Suitable 2-chloro-3-formylindoles have been used for the preparation of the alkaloids neocryptolepine, thienodolin and derivatives thereof (Papers III and IV). Finally, synthetic work towards potential metabolites of the lead compound B-220 is presented. We have described a method for reduction of the biologically interesting indolo[2,3b)quinoxalines with zinc, which are subsequently trapped with an appropriate anhydride to provide the corresponding mono or diacylated 5,1 1-dihydroindolo[2,3b]quinoxalines in good yields (paper V). Synthesis of hydroxy derivatives of B-220 can be effected from the appropriate methoxyisatins. Futher derivatives like the vinyl-, Nmethylaminoethyl- and Noxido derivatives of B-220 have also been synthesised.

sted, utgiver, år, opplag, sider
Stockholm: Karolinska instiutet, 2004. s. 50
HSV kategori
Identifikatorer
urn:nbn:se:sh:diva-32058 (URN)91-7140-161-X (ISBN)
Disputas
2004-12-10, Hörsalen, plan 4, NOVUM, Hälsovägen 7-9, Huddinge, 10:00 (engelsk)
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Tilgjengelig fra: 2017-02-14 Laget: 2017-02-14 Sist oppdatert: 2017-02-14bibliografisk kontrollert

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